20-101-1246 Rabbit Semiconductor, 20-101-1246 Datasheet - Page 44

• Manufacturer Part Number: 20-101-1246
• Description: CORE MODULE RCM5400W
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-1246

• Module/board Type: MPU Core Module
• Wireless Frequency: 73.73 MHz
• For Use With/related Products: RCM5400W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1148

4.2.2 Programming Port
The RCM5400W is programmed via the 10-pin header labeled J2. The programming port
uses the Rabbit 5000’s Serial Port A for communication. Dynamic C uses the programming
port to download and debug programs.
Serial Port A is also used for the following operations.
• Cold-boot the Rabbit 5000 on the RCM5400W after a reset.
• Fast copy designated portions of flash memory from one Rabbit-based board (the
Alternate Uses of the Programming Port
All three Serial Port A signals are available as
• a synchronous serial port
• an asynchronous serial port, with the clock line usable as a general CMOS I/O pin
The programming port may also be used as a serial port via the
programming cable.
In addition to Serial Port A, the Rabbit 5000 startup-mode (SMODE0, SMODE1),
STATUS, and reset pins are available on the programming port.
The two startup-mode pins determine what happens after a reset—the Rabbit 5000 is
either cold-booted or the program begins executing at address 0x0000.
The status pin is used by Dynamic C to determine whether a Rabbit microprocessor is
present. The status output has three different programmable functions:
1. It can be driven low on the first op code fetch cycle.
2. It can be driven low during an interrupt acknowledge cycle.
3. It can also serve as a general-purpose output once a program has been downloaded and
The reset pin is an external input that is used to reset the Rabbit 5000.
Refer to the
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master) to another (the slave) using the Rabbit Cloning Board.
is running.
Rabbit 5000 Microprocessor User’s Manual
for more information.
DIAG
RabbitCore RCM5400W
connector on the